CBMC vs Dafny

CBMC

6.9 #6 in Formal Verification Tools

About CBMC

Dafny

6.0 #15 in Formal Verification Tools

About Dafny
CBMCDafny
Free planYesNo
Free trialNoNo
Paid fromFree—
Open sourceNoNo
PlatformsLinux, macOS, self-hosted, WindowsWindows, macOS, Linux
Free planYesYes
Verification methodmodel-checkingdeductive
Supported formalismscontractscontracts
CounterexamplesYesYes
Input languagesC, C++, Java bytecode, SystemCDafny
Deploymentself-hostedself-hosted

Both are listed in Best Formal Verification Tools. On The Geeks Club, CBMC scores higher on our published basis.